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xz_007 [3.2K]
3 years ago
5

The line L1 has equation 2x+y=8.The line L2 passes through the point A(7,4) and is perpendicular to L1.

Mathematics
1 answer:
baherus [9]3 years ago
4 0
If m1 and m2 are the slopes of each line, for them to be perpendicular you gotta solve
m1 * m2 = -1
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christa went shopping for back to school clothes.Before the tax was added on, her total was $176. if the sales tax is 6% what wa
skelet666 [1.2K]
<span>Christa went shopping for back to school clothes.
She paid a total of 176 dollars before the tax was added on.
Now, how much will she be paying if the sales tax is 6% what was the total amount she paid.
Solutions:
=> 176 dollars * 6% to get the amount
=> 6% / 100% = 0.06
=> 176 dollars * .06 = 10.56
Now, let’s add to get the answer
=> 176 dollars + 10.56 dollars = 186.56 dollars</span>



7 0
4 years ago
Read 2 more answers
An athlete runs around a circular track. The track has a diameter of 200 feet. How many laps does she need to take to run a mile
Shtirlitz [24]
First you have to figure out the length of the track:

2 * \pi * r

r is the half of the diameter:
200ft : 2 = 100ft

2* \pi *100ft = 200\pi≈ 628,31

The athlete has to run ca. 5280ft for one mile:

5280 : 628,31≈8,4

The athlete has to run 8,4 laps
3 0
3 years ago
13) (3 + 7v2)(3 – 7v2)
Dovator [93]

Answer:

the answer to this problem is

9 - 21v^2 + 21v^2 - 49v^4

9 - 49v^4

Step-by-step explanation:

8 0
3 years ago
I need help on the 3 of them
Tamiku [17]

Answer:

1) 75 minutes / 1hour 15minutes

Step-by-step explanation:

to get one question done takes (45 ÷ 12) minutes. then times by 20.

Answer

2) I'm not too sure, I got 208.3 reoccurring, but that doesn't seem right so sorry if it's wrong

Answer

3)168 girls

step-by-step explanation

364 ÷ (6+7) × 6

6 0
3 years ago
Round your answer to the nearest tenth if necessary. Use 3.14 for it.
aliina [53]

Answer:

volume = 10,082.5 in³

Step-by-step explanation:

radius = 26/2 = 13

volume = πr²L = (3.14)(13²)(19) = 10,082.54 in³

6 0
3 years ago
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